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Based on 9 reviews
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Product Reviews
TowerPro Servo Motor - SG51R
I'm quite surprised by how small SG51R servos are, compared to its sibling models. I'm making a small compact pet project that required small components and the SG51R looked like the perfect fit. The cost and shipping time weren't bad. They're also the legit TowerPro brand servos, they all worked straight out of the box, and have a respectable amount of torque behind them. However, I did experience some complications with all three SG51R servos that I ordered. First, despite being from the TowerPro brand, one of my servo's shells had a plastic bit broken off and it's now stuck/dragging on the top white plastic gear ( I don't know how but it happened within the first hour of use). The other two servos also started to jam up hard, however only when moving the servo arm by hand (moves normally when controlling through electronic means) The biggest problem however involved all three SG51R servos that I ordered. Whenever the three servos held a position, a high-pitch frequency emitted from all three servos. This resulted in myself and nearby friends to soon develop headaches. I tried different solutions (etc. lower supply voltage), but the high-pitch frequency continued, only until I completely unplugged the power source. I would handle the servo's shell breaking off and jamming up but it's almost impossible to work with these servos if I'm going to develop a headache within the first 5 minutes of turning them on. My return window on the servos already ran out but because of the low prices, it wasn't that bad and it's not the end of the world for me. I just wanted to write this review to let others know about my experience if they wish to order these servos as well.
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1 year ago
TowerPro Servo Motor - SG51R
Really good little servos, used them to convert a Lidl chuck glider to RC. All three worked well with no jitter.
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1 year ago
TowerPro Servo Motor - SG51R
Easy to add and configure - see it in action for my new targeting system....
https://www.youtube.com/shorts/TKQ7O4Tqe3Q

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2 years ago
TowerPro Servo Motor - SG51R
Great product and worked well as a drop/release for my ezTargets.
https://www.youtube.com/shorts/cf1gFaByC2o
^^ releases a ball with the servo which releases the target.
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2 years ago
TowerPro Servo Motor - SG51R
Not bad for the price.
Does what it should do.
Speedy delivery was a bonus!
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2 years ago
TowerPro Servo Motor - SG51R
Runs directly from a microbit using 2xAAA batteries. Good little servo.
1 person found this review helpful.
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4 years ago
TowerPro Servo Motor - SG51R
yet to try it out
1 person found this review helpful.
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5 years ago
TowerPro Servo Motor - SG51R
For the size and price you can't expect much better.
Two points to note though. First, Ive used over 20 of these servos, and none had 180deg movement. As noted by another reviewer the real range is less; typically around 160-170deg. If you try to push them beyond this they stall/strain. Secondly, all the servos I've used have slightly different max ranges and even sound quite different.
These are not big issues, but you should be aware of them so you can design around the variability.
1 person found this review helpful.
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6 years ago
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